Hacker Problem 2-7: Crack

If you have completed Vigenere and want to try your hand at writing a program to crack encrypted passwords, then take a look at Crack.

You will be given several passwords, each of which has been encrypted with C’s DES-based (not MD5-based) crypt function.

You will have to do your own research on the crypt function and may want to start with the “man page” for crypt by typing

man crypt

into your terminal window.

The spec for the program is here.